Engine cylinder and head



J am.y 30, 1923.

D. 0. BARRETT.

ENGINE CYLINDER AND HEAD.

2 SHEETS-SHEET 1.

FILED NOV. 6,1919.

Jan. 30, 1923. 1,443,893.

D. o. BARRETT. y ENGINE CYLINDER AND HEAD.

FILED NOV. 6,1919. 2 SHEETS-SHEET Z. Z4/i5?, ,6

W/T/VESSES /NVENTR 'i 0.0.ARRE77 By ATTORNEYS Y DWIGHT ORION' BARRETT,0F SPRINGFIELD, OHIO.

E il

ENGINE cYLmDEa am) HEAD.

To all @kom t may concern: v

'Be it known that I', DWIGHT O. BARRETT,

'j a citizen of the United States, and a resident of Springfield, in thecounty of Clark and State of Ohio, have invented a new and `ImprovedEngine Cylinder and Head, of which the following is a full, clear, andexact description. i

This invention relates to internal combustion engines of any desiredtype either horizontalor .verticakand has for an object the provision ofan improved construction whereby kthe cylinder may be removablyconnectedto a bed in such a manner as tobe quickly and easily removedand replaced.

Another object of the invention -is to provide aniimproved constructionof cylinder which will be bolted to the bed in one Vplace and form atight connection at a second place.

A further object of the. invention is to y'provide anoverlappmgstructure for the cylinder bed and an overlapping structurefor the cylinder and head whereby the packing gaskets are prevented fromblowing out. A still further object of the invention is the provision ofan' unproved construction tion through a body 6 of a diierent size or ofhead which is cast integral with the tubular members 'for receiving theclamping or retaining'bolts. 'A L In the accompanyingdrawings:

Figure 1 is a long1tudinal vertical secand` cylinder disclosing anembodiment of the invention.

Fi re 2 is an end view of the head with certam parts broken away.

Figure 3 is an end view of the head shown in Figure 2, but looking atthe same in the opposite direction, broken away. l

sReferring to the accompanying drawings by numerals 1 indicates alfoundation of any fdesired kind on'which the bed 2 is mounted. The bed2 at 4the cylinder end is provided with a partition 3 having an annularshoul- -der f1 of a certain size while the extreme end is provided withan annular shoulder c diameter, shoulder 6 being provided with anoverhanging annular flange 7. Partition 3 is provided with an opening 8through which the piston rod 9 passes, said opening being provided witha packing box :10l for compression when the engine 1s ,in operation. Y-The piston rod 9 -is connected with `p1ston 11 slidingly mounted'in thecylinder certain parts being- Y tween piston llland .head 23 and theexhaust preventing the loss of Application filed November 6, 1919'.Serial .'il'o. 335,995. K

12. `The overhanging section 13 of the cylinder 12 'is provided with amaclfined end 14 fitting against the shoulder 6 and within the annularflange 7, while the inner end 15 of the cylinder 12 fits withintheshoulder 4 and engages the periphery thereof while the overhangingsection 13 fits v'latwise against the shoulder 6. A plurality of bolts16 are provided which extend through parf tition 3 into the threadedsockets in cylinder 12 whereby saidcylinder is-drawn toward thepartition "3 and thereby the shoulder 14 presses tightlyagainst thepacking 17 which in turnpresses against the shoulder 6. The flange 7positivel prevents any blowing out of thepacking and at the same timeassists the shoulder 6 in providing a tight joint in proper alignmentwith the cylinder. '.The space between the inner end section "of thecylinder 12 and the end section 18 of bed 2 is infree communication withthe inlet chamber 19, said inlet chamber receivin a mixture of air andgas from any suitab e source, as for instance a valve structure 20,similar to that disclosed in my Patent No. 1,292,677 issued January 28,'1919. Thisvalve structure will permit air and gas tov flow into thechamber 19, but iwill prevent any escape therefrom, lso that as thepiston 11 moves from the position shown in. Figure 1 the mixture of alrand ,gasl is drawn into the space or auxiliary chamber 21, after whichfthis explosive mixture is compressed by `piston 11 moving forward. onits .exploslon stroke.- As soon. the piston reaches substantially itsextreme forward position the explosive mixture will be under anappreciable pressure and will Orush 'through the opening 22 intocylinder 12 begases will pass out the exhaust manifold 24. Theoverhang'ingsection 13 of cylinder 12 is provided with a water jacket 25which is in. free communication with the water jacket 26 of head 23, andthe water jacket 26 andthe head 23 is also,'infree communication withthe end water jacket "27.v A suitable spark plug 28 is provided in head23 for causing the proper ignition at the proper time, the position ofthis plug and the wa'py it is arranged forming no part of the presentinvention.

The outer or forward end of the cylinder 12 is provided with a machinedshoulder 2,9 and a machined end section 30 fitting against the machinedsection 31 of head 23,

while shoulder 29 fits against the shoulder 32. A suitable gasket 33 isprovided, the gasket being held in place not only by the pressure ofshoulder 29 but by the overhanging annular flange 35. It will thus beseen that the overhanging portion 13 of' cylinder 12 is provided withend shoulders, the underlying flanges 7 and 35 coacting With theShoulders 6 and 3Q so as to provide a tight joint and more easily andaccurately set. The interior structure of the head 23 Amay besubstantially any kind, preferably this head is cast as an integralstructure.

In the casting tubular members 36 are pro! viding for receivingtheclamping bolts 3.7 which preferably fit reasonably snug at thel end 38and which screw into threaded apertures in the various flugs 39 castintegral with the outer end of cylinder l2. In this Way any of theclalnping bolts 37 may be removed during the ope-ration of the engineWithout disturbing any other part and With`V of cooling water, but willon the contrary assist in transmitting lthe heat to said Water so as tomaintain the head reasonably cool at all times.

`What I claim is: i

The combination with a cylinder having one end enlarged exteriorly toform a shoulder, said shoulder being Hush With one end of said cylinderandcooperating with the same to form a Wide bearing surface, ofa gasketmounted on Said bearing surface and having its inner and outer edgesflush with the inner wall ofthe cylinder and the outer wall of saidshoulder, a head extending over the entire area of and fiatly contactingwith said gasket, said head being provided with a continuous dependingflange engaging and surroundingsaid gasket and said shoulderrespectively and forming a means to hold the gasket against spreading,said head being provided with a Water jacket( and a plurality of tubularmembers, and

bolts extended through said tubular mem- 50 lbers and gaskets andthreaded into said cylinder.

DWIGHT oRiIoN BARRETT.

